CN114435277A - Fault positioning method and system for vehicle-mounted display screen and vehicle - Google Patents
Fault positioning method and system for vehicle-mounted display screen and vehicle Download PDFInfo
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- CN114435277A CN114435277A CN202210158506.XA CN202210158506A CN114435277A CN 114435277 A CN114435277 A CN 114435277A CN 202210158506 A CN202210158506 A CN 202210158506A CN 114435277 A CN114435277 A CN 114435277A
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000004891 communication Methods 0.000 claims description 11
- 230000008054 signal transmission Effects 0.000 claims description 6
- 230000001960 triggered effect Effects 0.000 claims description 2
- 238000011161 development Methods 0.000 description 5
- 238000003745 diagnosis Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000013024 troubleshooting Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012905 input function Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
- B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
- B60R16/0232—Circuits relating to the driving or the functioning of the vehicle for measuring vehicle parameters and indicating critical, abnormal or dangerous conditions
Abstract
The invention discloses a fault positioning method and a system of a vehicle-mounted display screen and a vehicle, wherein the vehicle-mounted display screen comprises a display screen sub-module and an air conditioner panel sub-module, a plurality of air conditioner keys for realizing the control of an automobile air conditioner are arranged on the air conditioner panel sub-module, and the fault positioning method comprises the following steps: s1, when a display type fault occurs on the vehicle-mounted display screen, triggering a display screen submodule of the vehicle-mounted display screen to restart through the air conditioner key combination; s2, triggering the display screen sub-module to restart through the air conditioner key after the vehicle-mounted display screen has black screen, flower screen and splash screen faults; s3, positioning the fault piece of the vehicle-mounted display screen according to the display phenomenon of the vehicle-mounted display screen after the display screen submodule is restarted; if the display type fault of the vehicle-mounted display screen disappears after the vehicle-mounted display screen is restarted, judging that the fault is caused by the vehicle-mounted display screen; and if the display type fault of the vehicle-mounted display screen exists after the vehicle-mounted display screen is restarted, judging that the fault is caused by the vehicle machine.
Description
Technical Field
The invention belongs to the field of intelligent automobile fault diagnosis, and particularly relates to a fault positioning method and system for a vehicle-mounted display screen and a vehicle.
Background
With the development of automobile electronic technology, the carrying rate of the vehicle-mounted display screen is higher and higher, and the vehicle-mounted display screen becomes an important component of the whole automobile parts. In the development process of the vehicle-mounted display screen, a series of engineering problems such as black screen, screen splash, screen flashing and the like can occur, and the problems need to be solved, otherwise, the mass production of the vehicle type can be influenced.
In the whole vehicle development process, the troubleshooting of the problems of the vehicle-mounted display screen usually consumes great manpower and material resources. Fault location directly affects the analysis of the cause of the problem. The main reasons that the problems of the display screen are difficult to be checked are as follows: 1. the problem of the display screen is usually caused by software errors, and the occurrence probability is low for accidental faults; 2. after the problem occurs, the fault phenomenon is easily damaged, and the fault does not reappear after the whole vehicle is electrified again, so that the difficulty of troubleshooting is increased; 3. the vehicle-mounted display screen is a display subsystem and is connected with the vehicle machine through an LVDS wire harness, and after a fault occurs, whether the fault is caused by the display screen or the vehicle machine cannot be judged through a conventional means; 4. after a fault occurs, the vehicle-mounted display screen needs to be detached from the whole vehicle, and fault analysis work can be carried out by means of equipment such as an oscilloscope and a frequency spectrograph.
The existing display screen fault diagnosis method is limited in that the method is only suitable for internal faults of a vehicle-mounted display screen, and the faults need to be determined firstly and then deeply analyzed by a display screen manufacturer. Display faults (black screen, screen splash, screen flashing and the like) of the whole vehicle can be caused by a vehicle-mounted display screen or a vehicle machine, and the existing diagnosis method is not suitable for the faults. Therefore, it is necessary to invent a positioning method for determining whether the problem is caused by the vehicle-mounted display screen or the vehicle-mounted device.
Disclosure of Invention
Aiming at the defects of the prior art, the technical problems to be solved by the invention are as follows: a fault positioning method, a system and a vehicle of a vehicle-mounted display screen are provided, wherein when the vehicle-mounted display screen has a fault and the restarting function cannot be realized through a display screen submodule, the vehicle-mounted display screen is quickly restarted in other modes to quickly position a fault piece.
In order to solve the technical problems, the invention adopts the following technical scheme:
the fault positioning method of the vehicle-mounted display screen is characterized in that the vehicle-mounted display screen comprises a display screen sub-module and an air conditioner panel sub-module, a plurality of air conditioner keys for realizing control of an automobile air conditioner are arranged on the air conditioner panel sub-module, and the fault positioning method comprises the following steps: s1, when a display type fault occurs on the vehicle-mounted display screen, triggering a display screen sub-module of the vehicle-mounted display screen to restart through the combination of an air conditioner key; s2, triggering the display screen sub-module to restart through the air conditioner key after the vehicle-mounted display screen has black screen, flower screen and splash screen faults; s3, positioning the fault piece of the vehicle-mounted display screen according to the display phenomenon of the vehicle-mounted display screen after the display screen submodule is restarted; if the black screen, the flower screen and the flashing screen of the vehicle-mounted display screen disappear after the vehicle-mounted display screen is restarted, judging that the fault is caused by the vehicle-mounted display screen; and if the screen blacking, screen splash and screen flashing faults of the vehicle-mounted display screen exist after the vehicle-mounted display screen is restarted, judging that the faults are caused by the vehicle machine.
Furthermore, the air conditioner key combination is two or more than two air conditioner key combinations, and after the air conditioner key combinations are pressed simultaneously, the vehicle-mounted display screen restart instruction can be triggered, so that the vehicle-mounted display screen is restarted under the condition that the vehicle machine is not powered off. A plurality of key combinations are adopted to trigger the vehicle-mounted display screen to restart, so that the phenomenon that the vehicle-mounted display screen is restarted after misoperation of a driver or other passengers can be avoided. And the mode that a plurality of buttons restart can not conflict with the air conditioner control command, and the command transmission is accurate.
Further, when the vehicle-mounted display screen is restarted, if the key combination of the air conditioner does not trigger the restart instruction of the vehicle-mounted display screen within 2-3 seconds, the restart of the vehicle-mounted display screen is invalid, and the key combination of the air conditioner within 2-3 seconds is pressed again to trigger the restart instruction of the vehicle-mounted display screen. The key combination time interval is short, and the condition that a user triggers the restarting function of the vehicle-mounted display screen after pressing a plurality of corresponding buttons in a short time when operating the air conditioner keys can be avoided.
The utility model provides a fault location system of on-vehicle display screen, on-vehicle display screen includes display screen submodule piece and air conditioner panel submodule piece, be equipped with a plurality of air conditioner buttons that are used for realizing vehicle air conditioner control on the air conditioner panel submodule piece, a serial communication connection all is passed through between air conditioner panel submodule piece and the air conditioner controller, between air conditioner controller and the car, between car machine and the display screen electronic module, the air conditioner panel submodule piece can be with the air conditioner according to the combination signal transmission for the air conditioner controller after, in proper order again with the air conditioner according to the combination signal transmission for car machine and display screen submodule piece to after the air conditioner according to the combination signal transmission for the display screen submodule piece, trigger the display screen and restart the submodule piece, at last, according to the demonstration phenomenon of on-vehicle display screen, fix a position vehicle-mounted display screen trouble piece.
Furthermore, the air conditioner panel submodule is in communication connection with the air conditioner controller through an LIN line, the air conditioner controller is connected with the vehicle machine through a CAN bus, and the vehicle machine is in communication connection with the display screen submodule through an LVDS line.
The vehicle is characterized in that the vehicle is provided with the fault positioning system of the vehicle-mounted display screen, the fault positioning system of the vehicle-mounted display screen is used for triggering a restarting instruction of the vehicle-mounted display screen through the air conditioner key combination after the vehicle-mounted display screen has black screen, flower screen and splash screen faults, so that the vehicle-mounted display screen is restarted, and the fault piece is determined to be a vehicle machine or the vehicle-mounted display screen through the display state after the vehicle-mounted display screen is restarted.
Compared with the prior art, the fault positioning method, the fault positioning system and the vehicle of the vehicle-mounted display screen have the following advantages that: after the display type fault occurs on the vehicle-mounted display screen, the vehicle-mounted display screen cannot be restarted through the touch screen, namely the vehicle-mounted display screen can be restarted in a key combination mode of an air conditioner, so that the vehicle-mounted display screen is restarted under the condition that a vehicle machine is not powered off, the vehicle is kept in a shop state after the fault occurs, and the display screen and the vehicle machine are always in a working state to protect a fault site. After the vehicle-mounted display screen is restarted, the output state of the vehicle machine is not changed in the restarting process, and the vehicle-mounted display screen is the only variable, so that the fault can be judged to appear on the vehicle-mounted display screen or the vehicle machine directly according to the fault display result of the vehicle-mounted display screen, the fault machine can be quickly positioned for maintenance personnel, the fault judging time is shortened, and the development time is saved.
Drawings
FIG. 1 is a schematic diagram of an on-board display screen in an embodiment;
FIG. 2 is a schematic diagram of keys of a vehicle-mounted display screen in the embodiment;
FIG. 3 is a logic block diagram of a vehicle-mounted display screen and a vehicle machine in the embodiment;
fig. 4 is a flow chart of fault location of the vehicle-mounted display screen.
Detailed Description
The invention is further illustrated with reference to the following figures and examples.
Example (b):
according to the fault positioning method and system for the vehicle-mounted display screen and the vehicle, the fault positioning system comprises the vehicle-mounted display screen, the vehicle-mounted display screen comprises a display screen sub-module and an air conditioner panel sub-module, a plurality of air conditioner keys for achieving automobile air conditioner control are arranged on the air conditioner panel sub-module, and the air conditioner panel sub-module is in communication connection with an air conditioner controller, the air conditioner controller is in communication connection with a vehicle machine, and the vehicle machine is in communication connection with a display screen electronic module; the vehicle is provided with the fault positioning system. As shown in FIG. 1, the on-board display screen includes a display screen sub-module and an air conditioner panel sub-module. The display screen sub-module realizes the touch and display functions, and the air conditioner panel sub-module realizes the key input function. When a display-type fault (such as a black screen, a flashing screen and a flower screen) occurs on the vehicle-mounted display screen 11, the display screen sub-module 111 is abnormal in function, and the touch and display functions are limited. If the car machine 12 is restarted, the fault phenomenon disappears, and the fault piece cannot be further locked. Therefore, after the fault occurs, the vehicle is required to be kept in a power-on state, and the display screen and the vehicle machine are ensured to be always in a working state so as to protect the fault site.
In order to ensure that the vehicle-mounted display screen 11 is always in a working state after a display fault occurs, the following method for positioning the display fault of the vehicle-mounted display screen is adopted in the embodiment: s1, presetting a software implementation code for triggering the display screen submodule of the vehicle-mounted display screen to restart through the air conditioner key combination under the condition that the vehicle-mounted display screen has a display type fault; s2, after the vehicle-mounted display screen has display faults (such as black screen, flashing screen and flower screen), triggering the display screen submodule to restart through an air conditioner key; s3, positioning a fault part of the vehicle-mounted display screen 11 according to the display phenomenon of the vehicle-mounted display screen 11 after the display screen submodule is restarted (as shown in figure 4); if the screen black, screen splash and screen flashing faults of the vehicle-mounted display screen 11 disappear after the vehicle-mounted display screen 11 is restarted, judging that the faults are caused by the vehicle-mounted display screen; and if the screen blacking, screen splash and screen flashing faults of the vehicle-mounted display screen exist after the vehicle-mounted display screen is restarted, judging that the faults are caused by the vehicle machine.
As shown in fig. 3, the air conditioner panel sub-module is in communication connection with the air conditioner controller through a LIN line, the air conditioner controller is connected with the vehicle machine through a CAN bus, and the vehicle machine is in communication connection with the display screen sub-module through a LVDS line. The car machine 12 inputs the video signal to the on-vehicle display screen 11 through the LVDS line. When a fault occurs, if the output state of the vehicle machine 12 is guaranteed not to change, the vehicle-mounted display screen 11 is restarted, and at the moment, the vehicle-mounted display screen 11 is the only variable. If the fault still exists after the vehicle-mounted display screen 11 is restarted, the fault caused by the vehicle machine 12 can be determined; conversely, it can be determined that the malfunction is caused by the in-vehicle display screen 11.
As shown in fig. 2, the air conditioner button in this embodiment is as follows: A. a main driving temperature adjusting button; B. a refrigeration key; C. an automatic mode button; D. a circulation key in the vehicle; E. a mode adjustment key; F. an air volume adjusting button; G. the air window defrosting and demisting button; H. a rear window heating key; I. a key of an ion generator; J. a temperature synchronization key; K. temperature regulation button is driven to the copilot. When the preset combination keys activate the inflatable vehicle-mounted display screen, the more the number of the set combination keys is, the less the misoperation is likely to occur, based on this, in this embodiment, the restart signal is transmitted to the display screen submodule 111 of the vehicle-mounted display screen through the "ACAFDH" combination keys, and the display screen submodule 111 activates the display screen restart function after receiving the restart signal. In specific setting, three or four or five combined keys can be adopted to send the restart signal.
In order to prevent the user from mistakenly triggering the restart function when operating the air conditioner key, the time interval during the input key combination should be as short as possible, and the re-input is required when the set key interval exceeds 2 seconds in the embodiment.
After the vehicle-mounted display screen is restarted, the vehicle machine still works normally, namely, a video signal sent to the display screen by the vehicle machine is not changed. If the fault disappears after restarting, determining that the fault is caused by the vehicle-mounted display screen; if the fault still exists after restarting, the fault can be determined to be caused by the vehicle machine. The method can be used for quickly positioning the fault piece, and the development time is saved.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the technical solutions, and although the present invention has been described in detail by referring to the preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions to the technical solutions of the present invention can be made without departing from the spirit and scope of the technical solutions, and all the modifications and equivalent substitutions should be covered by the claims of the present invention.
Claims (6)
1. The fault positioning method of the vehicle-mounted display screen is characterized in that the vehicle-mounted display screen comprises a display screen sub-module and an air conditioner panel sub-module, a plurality of air conditioner keys for realizing control of an automobile air conditioner are arranged on the air conditioner panel sub-module, and the fault positioning method comprises the following steps: s1, when a display type fault occurs on the vehicle-mounted display screen, triggering a display screen submodule of the vehicle-mounted display screen to restart through the air conditioner key combination; s2, after the display type fault occurs on the vehicle-mounted display screen, triggering the display screen sub-module to restart through the air conditioner key; s3, positioning the fault piece of the vehicle-mounted display screen according to the display phenomenon of the vehicle-mounted display screen after the display screen submodule is restarted; if the display type fault of the vehicle-mounted display screen disappears after the vehicle-mounted display screen is restarted, judging that the fault is caused by the vehicle-mounted display screen; and if the display type fault of the vehicle-mounted display screen exists after the vehicle-mounted display screen is restarted, judging that the fault is caused by the vehicle machine.
2. The method for positioning the fault of the vehicle-mounted display screen according to claim 1, wherein the air-conditioner key combination is two or more air-conditioner key combinations, and after the air-conditioner key combinations are pressed simultaneously, the vehicle-mounted display screen can be triggered to restart through a vehicle machine, so that the vehicle-mounted display screen can be restarted under the condition that the vehicle machine is not powered off.
3. The method for locating the fault of the vehicle-mounted display screen as claimed in claim 2, wherein when the vehicle-mounted display screen is restarted, if the key combination of the air conditioner does not trigger the restart instruction of the vehicle-mounted display screen within 2-3 seconds, the restart of the vehicle-mounted display screen is invalid, and the key combination of the air conditioner within 2-3 seconds is pressed again to trigger the restart instruction of the vehicle-mounted display screen.
4. The utility model provides a fault location system of on-vehicle display screen, on-vehicle display screen includes display screen submodule piece and air conditioner panel submodule piece, be equipped with a plurality of air conditioner buttons that are used for realizing vehicle air conditioner control on the air conditioner panel submodule piece, a serial communication connection all is passed through between air conditioner panel submodule piece and the air conditioner controller, between air conditioner controller and the car, between car machine and the display screen electronic module, the air conditioner panel submodule piece can be with the air conditioner according to the combination signal transmission for the air conditioner controller after, in proper order again with the air conditioner according to the combination signal transmission for car machine and display screen submodule piece to after the air conditioner according to the combination signal transmission for the display screen submodule piece, trigger the display screen and restart the submodule piece, at last, according to the demonstration phenomenon of on-vehicle display screen, fix a position vehicle-mounted display screen trouble piece.
5. The system for locating the fault of the vehicle-mounted display screen according to claim 4, wherein the air conditioner panel submodule is in communication connection with an air conditioner controller through a LIN line, the air conditioner controller is connected with a vehicle machine through a CAN bus, and the vehicle machine is in communication connection with the display screen submodule through an LVDS line.
6. A vehicle is characterized by comprising the fault positioning system of the vehicle-mounted display screen as claimed in claim 4 or 5, wherein the fault positioning system of the vehicle-mounted display screen is used for triggering a restarting instruction of the vehicle-mounted display screen through an air conditioner key combination after the vehicle-mounted display screen has a black screen fault, a flower screen fault and a flashing screen fault, so that the vehicle-mounted display screen is restarted, and whether a fault element is a vehicle-mounted display or the vehicle-mounted display screen is determined through a display state after the vehicle-mounted display screen is restarted.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210158506.XA CN114435277A (en) | 2022-02-21 | 2022-02-21 | Fault positioning method and system for vehicle-mounted display screen and vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210158506.XA CN114435277A (en) | 2022-02-21 | 2022-02-21 | Fault positioning method and system for vehicle-mounted display screen and vehicle |
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|---|---|---|---|---|
| US20020044049A1 (en) * | 2000-10-13 | 2002-04-18 | Hitachi, Ltd., | On-vehicle breakdown-warning report system |
| CN103995760A (en) * | 2014-05-23 | 2014-08-20 | 江门市未来之星网络科技有限公司 | Computer fault detection device and detection and maintenance method |
| CN109582506A (en) * | 2018-12-25 | 2019-04-05 | 深圳开立生物医疗科技股份有限公司 | The restoration methods and device of touch screen failure, host equipment and touch-control system |
| CN112158141A (en) * | 2020-09-27 | 2021-01-01 | 深圳口袋码农科技有限公司 | Control method and device for vehicle-mounted display equipment |
| CN213199620U (en) * | 2020-05-14 | 2021-05-14 | 蘑菇车联信息科技有限公司 | Intelligent vehicle machine system |
| CN112798226A (en) * | 2020-12-25 | 2021-05-14 | 东风汽车有限公司 | System and method for processing faults of vehicle-mounted display screen |
-
2022
- 2022-02-21 CN CN202210158506.XA patent/CN114435277A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020044049A1 (en) * | 2000-10-13 | 2002-04-18 | Hitachi, Ltd., | On-vehicle breakdown-warning report system |
| CN103995760A (en) * | 2014-05-23 | 2014-08-20 | 江门市未来之星网络科技有限公司 | Computer fault detection device and detection and maintenance method |
| CN109582506A (en) * | 2018-12-25 | 2019-04-05 | 深圳开立生物医疗科技股份有限公司 | The restoration methods and device of touch screen failure, host equipment and touch-control system |
| CN213199620U (en) * | 2020-05-14 | 2021-05-14 | 蘑菇车联信息科技有限公司 | Intelligent vehicle machine system |
| CN112158141A (en) * | 2020-09-27 | 2021-01-01 | 深圳口袋码农科技有限公司 | Control method and device for vehicle-mounted display equipment |
| CN112798226A (en) * | 2020-12-25 | 2021-05-14 | 东风汽车有限公司 | System and method for processing faults of vehicle-mounted display screen |
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